Everyone, from those starting out to grandmasters, has room for improvment. I just saw an exhibit of John Singer Sargent works, where he wasn't happy with his watercolor paintings, which he saw as distractions from his oil painting. He has some amazing watercolors, the Venice works alone... So even those at the top of their game may downplay their own work.
So I'd encourage you. in my small way, to keep experimenting. Everything has to have a beginning, and I think you've done great so far. Keep on doing, and I know it will get closer to what you want.
The only way you're going to get what you want out of artwork for no money is to learn to do it yourself -- so keep practicing.
Hey, I just read it and believe me... it was NO waste of time from my part, tj.
Letting us fans know about what your intentions/wishes are about your OCs is a very important matter since that proves how much you want to improve the quality of your art, as well as having others to have a shot at drawing them.
Also, trying to get your characters to develop some more in terms of their personalities and more IS another matter to take into consideration, so I think this has been a well-invested amount of my time!